Boston Scientific Ownership | Who Owns Boston Scientific?

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Boston Scientific Ownership Summary

Boston Scientific is owned by 60.91% institutional investors, 0.19% insiders, and 38.91% retail investors. Vanguard group is the largest institutional shareholder, holding 9.42% of BSX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.16% of its assets in Boston Scientific shares.

BSX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Boston Scientific	60.91%	0.19%	38.91%
Sector	Healthcare Stocks	232.01%	10.74%	-142.75%
Industry	Medical Device Stocks	37.54%	10.61%	51.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	139.69M	9.42%	$13.32B
Blackrock funding, inc. /de	135.99M	9.17%	$12.97B
Fmr	99.48M	6.73%	$9.71B
State street	64.93M	4.39%	$6.34B
Geode capital management	32.38M	2.18%	$3.07B
Primecap management co/ca/	31.10M	2.10%	$2.97B
Capital world investors	27.15M	1.83%	$2.59B
Jpmorgan chase	25.37M	1.71%	$2.42B
Norges bank	23.07M	1.56%	$2.20B
Morgan stanley	22.96M	1.55%	$2.19B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bollard group	19.73M	45.28%	$1.93B
Miura global management	70.00K	10.06%	$6.83M
Surgocap partners lp	3.42M	9.30%	$334.38M
Orbimed advisors	2.43M	5.59%	$237.17M
Egerton capital (uk) llp	5.39M	5.58%	$513.47M
Fact capital, lp	95.91K	4.87%	$9.36M
Iron triangle partners lp	495.01K	4.87%	$44.21M
Catalio capital management, lp	262.97K	4.75%	$25.67M
Meridiem capital partners lp	720.07K	4.49%	$70.30M
Parkman healthcare partners	434.38K	4.42%	$42.41M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	23.07M	0.24%	23.07M
Ubs group	14.87M	0.23%	4.30M
Axa investment managers	2.82M	0.74%	2.82M
Alphinity investment management pty	2.65M	2.56%	2.65M
Marshall wace, llp	9.80M	0.97%	2.30M

Top Sellers

Holder	Shares	% Assets	Change
Wellington management group llp	14.65M	0.25%	-18.00M
Blackrock funding, inc. /de	135.99M	0.22%	-9.19M
Fmr	99.48M	0.51%	-8.83M
Artisan partners limited partnership	4.76M	0.66%	-3.76M
Jpmorgan chase	25.37M	0.15%	-2.96M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	23.07M	0.24%	23.07M	$2.20B
Axa investment managers	2.82M	0.74%	2.82M	$275.01M
Alphinity investment management pty	2.65M	2.56%	2.65M	$252.92M
Mirova us	1.37M	1.31%	1.37M	$130.63M
Compass capital management	584.07K	3.09%	584.07K	$55.69M

Sold Out

Holder	Change
Inlight wealth management	-2.00
Goalvest advisory	-3.00
Mendota financial group	-3.00
First pacific financial	-6.00
University of texas/texas am investment managment	-8.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	1,378	-22.50%	903,039,979	-32.58%	60	0.74%	651	-30.30%	521	-5.62%
Sep 30, 2025	1,701	-2.47%	1,323,886,993	2.39%	89	1.17%	897	0.79%	526	-4.71%
Jun 30, 2025	1,717	1.54%	1,345,387,314	2.31%	90	1.15%	882	-0.56%	537	-2.01%
Mar 31, 2025	1,673	7.04%	1,313,233,213	-1.58%	88	1.08%	876	7.09%	545	11.00%
Dec 31, 2024	812	-43.92%	323,911,142	-75.12%	21	0.28%	437	-39.14%	244	-48.31%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	46.63M	3.16%	62.58K
Vanguard Total Stock Mkt Idx Inv	46.69M	3.15%	115.21K
Vanguard 500 Index Investor	37.77M	2.55%	235.62K
Vanguard PRIMECAP Inv	20.64M	1.39%	-1.71M
iShares Core S&P 500 ETF	18.88M	1.27%	3.66M
Fidelity 500 Index	18.75M	1.26%	34.40K
SPDR® S&P 500 ETF	18.33M	1.24%	-268.46K
SPDR® S&P 500® ETF	17.88M	1.21%	219.86K
SPDR® S&P 500® ETF Trust	17.84M	1.21%	-93.53K
State Street® SPDR® S&P 500® ETF	17.48M	1.18%	-31.10K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 02, 2026	Mahoney Michael F	Chairman, President & CEO	Sell	$14.93M
Feb 02, 2026	Mahoney Michael F	Chairman, President & CEO	Sell	$112.87K
Dec 01, 2025	Butcher Arthur C	EVP& Grp Pres, MedSurg & APAC	Sell	$1.76M
Nov 06, 2025	Zane Ellen M	-	Sell	$1.27M
Nov 03, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$362.69K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	2
2025 Q4	-	9
2025 Q3	-	7
2025 Q2	-	11
2025 Q1	-	26

BSX Ownership FAQ

Who Owns Boston Scientific?

Boston Scientific shareholders are primarily institutional investors at 60.91%, followed by 0.19% insiders and 38.90% retail investors. The average institutional ownership in Boston Scientific's industry, Medical Device Stocks, is 37.54%, which Boston Scientific exceeds.

Who owns the most shares of Boston Scientific?

Boston Scientific’s largest shareholders are Vanguard group (139.69M shares, 9.42%), Blackrock funding, inc. /de (135.99M shares, 9.17%), and Fmr (99.48M shares, 6.73%). Together, they hold 25.32% of Boston Scientific’s total shares outstanding.

Does Blackrock own Boston Scientific?

BlackRock is not among the top 10 institutional shareholders of Boston Scientific.

Who is Boston Scientific’s biggest shareholder by percentage of total assets invested?

Bollard group is Boston Scientific’s biggest shareholder by percentage of total assets invested, with 45.28% of its assets in 19.73M Boston Scientific shares, valued at 1.93B$.

Who is the top mutual fund holder of Boston Scientific shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Boston Scientific shares, with 3.16% of its total shares outstanding invested in 46.63M Boston Scientific shares.

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